Prince Louis christening: Kate Middleton and Prince William' royal baby number three to be christened today at St James's Palace - here's all the details

The Duke and Duchess of Cambridge's third child Prince Louis will be christened today.

Prince Louis christening: Kate Middleton and Prince William's son will have his special day soon as date is revealed [Getty]

Prince Louis' christening details have been revealed by Kensington Palace two months after he was born on April 23, 2018.

Kate Middleton and Prince William have announced all the details surrounding their third child's christening, from the date to the location.

A statement from the official Kensington Palace Twitter account, read: "The Duke and Duchess of Cambridge are pleased to announce that the christening of Prince Louis will take place on Monday 9th July at The Chapel Royal, St James’s Palace, London."

And there's a reason why they've chosen to wait until July, as Prince George will have just finished school, as will Princess Charlotte, meaning they'll all be able to attend the special day as the whole family.

Here's everything you need to know about Prince Louis' big day...

Prince Louis christening: The Duke and Duchess of Cambridge have announced a date and location [Getty]

Prince Louis' christening date

Kate's son will be christened on July 9, 2018, 11 weeks after he was born.

His brother Prince George was christened at a similar time, and was baptised about 13 weeks after he was born on October 23, 2013.

Sister Princess Charlotte was also christened about two months after Kate gave birth to her.

Prince Louis' christening location

The tiny royal will be christened at The Chapel Royal, St James’s Palace, London, where Prince George was christened in 2013.

The chapel has sentimental meaning for the family - it's where Kate Middleton received communion before her wedding in April 2011, and it is also where the coffin of Princess Diana lay before her funeral in 1997.

Prince William and Kate Middleton's family photo album

Prince William and Kate Middleton's family photo album

Kensington Palace release an adorable family portrait to go on Kate and Will's Christmas card
[Twitter/@ChrisJack_Getty]

Prince William and Kate Middleton's adorable children Prince George and Princess Charlotte have provided some seriously cute moments over the years – click here to see the royal family's photo album

Princess Charlotte was christened at St. Mary Magdalene Church on the Queen's Sandringham Estate in Norfolk in 2015.

Prince Louis christening: The Duke and Duchess of Cambridge christened Prince George at the same location in 2013 [Getty]

Who will christen Prince Louis?

Kensington Palace confirmed: "Prince Louis will be christened by The Archbishop of Canterbury, the Most Reverend Justin Welby."

The Archbishop of Canterbury christened both Prince Louis' siblings in 2013 and 2015.

Prince Louis christening: The Duke and Duchess of Cambridge used the The Archbishop of Canterbury for all three children [Getty]

What will Prince Louis wear at his christening?

It has been reported Kate’s third child will wear the same Honiton ivory lace gown his older brother and sister wore.

The tradition of wearing the gown started in 1841 when the original gown was made for Queen Victoria’s first child Princess Victoria's baptism. The christening gown has been passed down to each generation and worn by 62 royal babies.

However in 2008 a new replica was made as the original, worn by the Prince of Wales, the Duke of Cambridge and Prince Harry among others, had to be carefully preserved after becoming worn down.